Global Patent Index - EP 0289943 A1

EP 0289943 A1 19881109 - Glass-ceramic article and method for its production.

Title (en)

Glass-ceramic article and method for its production.

Title (de)

Glaskeramischer Artikel und Verfahren zu dessen Herstellung.

Title (fr)

Objet en vitrocéramique et méthode de production.

Publication

EP 0289943 A1 19881109 (EN)

Application

EP 88106844 A 19880428

Priority

JP 10963987 A 19870507

Abstract (en)

A method for producing a glass-ceramic article, which comprises crystallizing a glass article consisting essentially of from 40 to 60% by weight of SiO2, from 13 to 19% by weight of Al2O3, from 0 to 6% by weight of B2O3, from 8 to 16% by weight of MgO, from 2 to 6% by weight of CaO, from 3 to 9% by weight of ZnO, from 5 to 12% by weight of TiO2, from 0 to 3% by weight of Li2O + Na2O + K2O, from 0 to 3% by weight of P2O5 and from 0 to 2% by weight of ZrO2.

IPC 1-7

C03C 10/00

IPC 8 full level

C03C 10/00 (2006.01); C03C 10/02 (2006.01)

CPC (source: EP US)

C03C 10/0045 (2013.01 - EP US); C03C 10/0054 (2013.01 - EP US)

Citation (search report)

  • [X] CHEMICAL ABSTRACTS, vol. 90, no. 24, June 1979, page 285, no. 191391u, Columbus, Ohio, US; & PL-B1-97 072 (ZAKLADY PRZEMYSLU ELEKTRONICZNEGO "KAZEL") 15-07-1978
  • [X] CHEMICAL ABSTRACTS, vol. 83, no. 3, 11th August 1975, page 243, no. 47221b, Columbus, Ohio, US; & JP-A-49 105 815 (HIROSHIMA GLASS INDUSTRY CO., LTD) 07-10-1974
  • [XP] CHEMICAL ABSTRACTS, vol. 107, no. 24, 14th December 1987, page 277, no. 221968b, Columbus, Ohio, US; & JP-A-62 108 742 (ASAHI GLASS CO., LTD) 20-05-1987

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0289943 A1 19881109; JP S6452632 A 19890228; US 4985375 A 19910115

DOCDB simple family (application)

EP 88106844 A 19880428; JP 10410988 A 19880428; US 19007188 A 19880504